HG/T 20592  法兰盖 BL 300-16 RF1000F0S-116ole/

BL300-16RF1000F0S-116ole/

WN 28"-400 RF S=15

WN80(a)-150RF sch40sRF(S=5)-20093\u0085\u0

WN 40-1500 RF Sch80S.0 Ã0RF0/AA=102/u007hR

WN 42"-150 RF Sch20S00 LG Sch85/21F6150R

47023 FF2200-11.05 L=19Sch40S300 RF 1700-00-

WN 65-16 RF S=≥FF